It was peace of mind he wanted, and not money.
When Mr.Gryce left him, it was with an even slower step than usual.
Peace of mind! How about his own peace of mind?
Was he trailing this poor unfortunate from pillar to post, for the reward it would bring him?
No.

With his advancing years money had lost much of its attraction.

Nor, if he knew himself, was he particularly affected by the glory which attends success.

Duty, and duty only, drove him on--to elucidate his problem and merit the confidence put in him by his superiors.

If suffering followed, that was not his fault; his business was to go ahead.
It was in this frame of mind that he prepared himself for the automobile trip he saw before him.
There was no question in Mr.Gryce's mind now, as to this woman's destination or whither he should be obliged to go in order to find her.
As he now saw into her mind, she had left New York with the intention of hiding herself in the remote village to which she had ordered her mail sent under the name of Elvira Brown, whom she evidently knew; but hearing, either on the car or in the hotel, where she was detained, the plea which was being made for workers in the factory on the east side of the river, she had modified her plans to the extent already known, only to return to her original intention as soon as the attempt to provide for herself in this independent way had proved a failure.
He would proceed then in her wake, conscious of the fresh disappointment which awaited her in the loss, through Miss Brown's sudden death, of the asylum she counted upon.